Chain-pump barrel



(No Model.)

C. H. MILLER.

CHAIN PUMP BARREL.

No. 320,672. Y Patented June Z3, 1885.

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III'IIII IIIIIII IIII IIIIHII IIIIIII IIIII I' III IIII IZMKM .ZNVEWTOR .Attornyy NrrEn STATES oHARLEs H. MILLER, oE ooLUMRUs, omo.

CHAIN-PUMP BARREL.

SPECIFICATION forming part of Letters Patent No. 320,672, dated .Tune 23,

Application filed May 4, 1885. (No model.)

To @ZZ whom it Emy concern.-

Beit known that I, CrLrRLEs H. MILLER, a citizen ofthe United States, and a resident of Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Chain-Pump Barrels; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, which forni a part of this specification, and in which- Figure 1 is a vertical sectional view of my improved tube or barrel for chain-pumps; and Fig. 2 is a similar view showing the workingbarrel adjusted to a different position.

The same letters refer to the saine parts in both the figures.

This invention relates to chain-pump barrels; and it has for its object to provide a device of this class which shall possess superior advantages in point of simplicity, durability, and general efficiency.

llfith these ends in view the invention con sists in the improved construction, arrangement, and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, A designates the main pump barrel or tube, which maybe made of wood, and which serves to convey the water to the top of the well or cistern.

Bis the working-barrel, which is fitted in the lower end of the tube or barrel A, into which it may be slid or tclescoped, as will be seen in the drawings hereto annexed. This working-barrel is preferably made of porcelain-lined cast-iron, which is inexpensive, durable, and in every way efficient. Other metals or materials may, however, be employed in the construction of the said working-barrel when desired.

The interior diameter of the working-barrel shall be such that the chain-pump buckets C shall work effectively therein, and its length need but slightly exceed the distance between any two adjoining pump-buckets, although it may be made longer when desired.

The lower end of the barrel A is made slightly tapering and provided with an exterior screw-thread, D, on which is fitted a tapering clamping-nut, E, by tightening which the lower end of the said tube A will be compressed, and thus clamp and hold the working-barrel B securely in any position to which it may have been adjusted.

The operation and advantages of this invention will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed, by those skilled in the art to which it appertains.

The principal object of the short workingbarrel is to reduce friction in the operation of the pump, thereby facilitating the labor and avoiding all excessive or unnecessary wear, both of which items are of considerable importance, especially in deep-well pumps. Another advantage is, that the working-barrel may be readily extended from or withdrawn into the main tube or barrel, as occasion may demand, thus enabling the pump-barrel to be readily fitted to wells of various depths.

The construction is simple and inexpensive, especially when the cast-iron porcelain-lined working-barrel is used.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United Statesl. In a chain-pump barrel, the combination, with a main tube or barrel of greater interior diameter than the pump-buckets, of an interiorly-arranged sliding or telescopic workingbarrel, and means for retaining the latter in any position to which it may be adjusted, substantially as and for the purpose set forth.

2. In a chain-pump barrel, the combination of an upper or main barrel beveled and cxteriorly screw-threaded at its lower end, a telescopic or extensible working-barrel fitted in the lower end of said main barrel, and a tapering clamping-nut, substantially as and for the purpose herein set forth.

In testimony that I claim the foregoing'as my own I have hereunto affixed my signature in presence of two witnesses.

CHARLES H. MILLER.

TWitnesses:

C. N. Si-IoUeI-r, FRANK WEAVER. 

